My Domain authority dropped 9 points... Does anyone have any suggestions to fix this significant drop.

[infotrust2]

My domain authority dropped by 9 points and I haven't done anything differently since the last scan. What is going on?

[DonnaDuncan]

I noticed some big drops in the sites I monitor this update as well, yet rankings and traffic are business as usual.

Patrick's link is helpful as are other's comments. The other thing I'd suggest is to monitor traffic, rankings and webmaster tools to make sure nothing is seriously wrong. If nothing arouses your suspicion, wait for the next update. This one was smaller than the last, root domains down by almost 10%. If you have a site with few incoming link sources, you're going to be more susceptible to sampling fluctuations.

[Linda-Vassily]

You should not look at Moz's domain authority as a fixed number; it will change, depending on their index that month. A good way to look at this number is relative to a couple of your competitors. Track them, and if their number also goes down when yours goes down, it is probably the index.

[MarketPlanB]

You are not alone, my site dropped 6 points and my competitors that I am tracking also dropped anywhere from 3-5 points as well.

[PatrickDelehanty]

Hi there

Rand actually just gave some insight to this in another Q+A thread; I recommend reading it!

Hope this helps - good luck!

[jmorehouse]

I wonder if Moz has recently modified their domain authority algorithm to take into consideration Google's mobile-friendly or "Phantom" updates?

[BruceA]

Domain Authority is not really something you can control.  It is a view taken by Moz, Google etc using various algorithms.   So now you cannot influence the rank easily.

I would recommend stepping way way back and take a broad view of your site and look at some of the key Domain ranking factors that Google (might, as we can guess but they don't tell) use.

Dropping a factor of 9 is large, so something must have changed in the bigger picture.

Bear in mind that just because the numbers have gone down, does not mean that your site has had a penalty or other such disaster, it could well be that your Pond just became a Sea for some reasons, which you need to take a view on in your broad overview of your industry.

Please let us know how you get on as this would be very interesting to all Mozers I am sure

Bruce